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Dactylaria tunicata. Figs 1-2. Squash mounts of conidiophores and conidia in lactophenol. Figs 3-5. Conidia. Note the hyaline gelatinous sheath around the conidia. Scale bars : 1, 50 µm ; 2, 20 µm ; 3-5, 10 µm.
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Dactylaria tunicata sp. nov. from submerged wood in a freshwater stream from Australia is described and illustrated. It differs from all previously described species of Dactylaria in having uniseptate conidia with a hyaline sheath. The 41 species of Dactylaria accepted by de Hoog are listed together with a further 41 validly published species of Da...
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Context 1
... ; denticles hyaline, 1-2n5 µm long, ca 0n5- 1 µm wide. Conidial secession schizolytic. Conidia acro- pleurogenous, holoblastic, solitary, naviculate to fusiform, mostly with parallel sides, conically acuminate at both ends, Fig. 8. D. endophytica. Fig. 9. D. iriomoteana. Fig. 10. D. tunicata. Fig. 11. D. havanensis. Fig. 12. D. hemibeltranioidea. Fig. 13. D. sandinensis. Fig. 14. D. longidentata. Fig. 15. D. cubensis. Fig. 16. D. sporexamorpha. Fig. 17. D. appendiculata. Fig. 18. D. argentina. Fig. 19. D. attenuata. Fig. 20. D. quercicola. Fig. 21. D. botulispora. Fig. 22. D. fecundissima. Fig. 23. D. fabiformis. Fig. 24. D. lunata. Fig. 25. D. isoscelispora. Fig. 26. D. manifesta. Fig. 27. D. xinjiangensis. Scale bars, 5 µm. Fig. 28. D. simonensis. Fig. 29. D. hoogii. Fig. 30. D. ...
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... Fig. 10. D. tunicata. Fig. 11. D. havanensis. Fig. 12. D. hemibeltranioidea. Fig. 13. D. sandinensis. Fig. 14. D. longidentata. Fig. 15. D. cubensis. Fig. 16. D. sporexamorpha. Fig. 17. D. appendiculata. Fig. 18. D. argentina. Fig. 19. D. attenuata. Fig. 20. D. quercicola. Fig. 21. D. botulispora. Fig. 22. D. fecundissima. Fig. 23. D. fabiformis. Fig. 24. D. lunata. Fig. 25. D. isoscelispora. Fig. 26. D. manifesta. Fig. 27. D. xinjiangensis. Scale bars, 5 µm. Fig. 28. D. simonensis. Fig. 29. D. hoogii. Fig. 30. D. lignicola. Fig. 31. D. eucalypti. Fig. 32. D. zapatensis. Fig. 33. D. splendida. Fig. 34. D. nectandrae. Fig. 35. D. cylindrospora. Fig. 36. D. triseptata. Fig. 37. D. queenslandica. Fig. 38. D. longispora. Fig. 39. D. sparsa. Fig. 40. D. ...
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... 19. D. attenuata. Fig. 20. D. quercicola. Fig. 21. D. botulispora. Fig. 22. D. fecundissima. Fig. 23. D. fabiformis. Fig. 24. D. lunata. Fig. 25. D. isoscelispora. Fig. 26. D. manifesta. Fig. 27. D. xinjiangensis. Scale bars, 5 µm. Fig. 28. D. simonensis. Fig. 29. D. hoogii. Fig. 30. D. lignicola. Fig. 31. D. eucalypti. Fig. 32. D. zapatensis. Fig. 33. D. splendida. Fig. 34. D. nectandrae. Fig. 35. D. cylindrospora. Fig. 36. D. triseptata. Fig. 37. D. queenslandica. Fig. 38. D. longispora. Fig. 39. D. sparsa. Fig. 40. D. leptosphaeriicola. Fig. 41. D. monticola. Fig. 42. D. aspirensis. Fig. 43. D. nervicola. Fig. 44. D. arecae. Scale bars, 5 ...
Citations
... The present collection is tentatively named in Dactylaria, where it is phylogenetically distinct from other dactylaria-like taxa (Fig. 8). Morphologically, it is most similar to D. monticola in having medianly 1-septate, straight to narrowly fusoid conidia (30-37 × 1-1.5 µm) (Goh & Hyde 1997). Phylogenetically, it is related to D. monticola (CBS 188.95) in Xylariales, but distinct (Fig. 8 Etymology: Name refers to the host genus Miltonia from which it was isolated. ...
Nine new genera, 17 new species, nine new combinations, seven epitypes, three lectotypes, one neotype, and 14 interesting new host and / or geographical records are introduced in this study. New genera: Neobarrmaelia (based on Neobarrmaelia hyphaenes ), Neobryochiton (based on Neobryochiton narthecii ), Neocamarographium (based on Neocamarographium carpini ), Nothocladosporium (based on Nothocladosporium syzygii ), Nothopseudocercospora (based on Nothopseudocercospora dictamni ), Paracamarographium (based on Paracamarographium koreanum ), Pseudohormonema (based on Pseudohormonema sordidus ), Quasiphoma (based on Quasiphoma hyphaenes ), Rapidomyces (based on Rapidomyces narthecii ). New species: Ascocorticium sorbicola (on leaves of Sorbus aucuparia , Belgium), Dactylaria retrophylli (on leaves of Retrophyllum rospigliosii , Colombia), Dactylellina miltoniae (on twigs of Miltonia clowesii , Colombia), Exophiala eucalyptigena (on dead leaves of Eucalyptus viminalis subsp. viminalis supporting Idolothrips spectrum , Australia), Idriellomyces syzygii (on leaves of Syzygium chordatum , South Africa), Microcera lichenicola (on Parmelia sulcata , Netherlands), Neobarrmaelia hyphaenes (on leaves of Hyphaene sp., South Africa), Neobryochiton narthecii (on dead leaves of Narthecium ossifragum , Netherlands), Niesslia pseudoexilis (on dead leaf of Quercus petraea , Serbia), Nothocladosporium syzygii (on leaves of Syzygium chordatum , South Africa), Nothotrimmatostroma corymbiae (on leaves of Corymbia henryi , South Africa), Phaeosphaeria hyphaenes (on leaves of Hyphaene sp., South Africa), Pseudohormonema sordidus (on a from human pacemaker, USA), Quasiphoma hyphaenes (on leaves of Hyphaene sp., South Africa), Rapidomyces narthecii (on dead leaves of Narthecium ossifragum , Netherlands), Reticulascus parahennebertii (on dead culm of Juncus inflexus , Netherlands), Scytalidium philadelphianum (from compressed air in a factory, USA). New combinations: Neobarrmaelia serenoae , Nothopseudocercospora dictamni , Dothiora viticola , Floricola sulcata , Neocamarographium carpini , Paracamarographium koreanum , Rhexocercosporidium bellocense , Russula lilacina . Epitypes: Elsinoe corni (on leaves of Cornus florida , USA), Leptopeltis litigiosa (on dead leaf fronds of Pteridium aquilinum , Netherlands), Nothopseudocercospora dictamni (on living leaves of Dictamnus albus , Russia), Ramularia arvensis (on leaves of Potentilla reptans , Netherlands), Rhexocercosporidium bellocense (on leaves of Verbascum sp., Germany), Rhopographus filicinus (on dead leaf fronds of Pteridium aquilinum , Netherlands), Septoria robiniae (on leaves of Robinia pseudoacacia , Belgium). Lectotypes: Leptopeltis litigiosa (on Pteridium aquilinum , France), Rhopographus filicinus (on dead leaf fronds of Pteridium aquilinum , Netherlands), Septoria robiniae (on leaves of Robinia pseudoacacia , Belgium). Neotype: Camarographium stephensii (on dead leaf fronds of Pteridium aquilinum , Netherlands).
... Considering morphological characters, we proposed a new genus Antidactylaria to accommodate the new species A. minifimbriata and the new combination A. ampulliforma. (Goh and Hyde 1997;Paulus et al. 2003;Seifert et al. 2011). However, the rhexolytic conidial secession, observed in Antidactylaria, is absent in Dactylaria. ...
The family Microthyriaceae is represented by relatively few mycelial cultures and DNA sequences; as a result, the taxonomy and classification of this group of organisms remain poorly understood. During the investigation of the diversity of aquatic hyphomycetes from southern China, several isolates were collected. These isolates were cultured and sequenced and a BLAST search of its LSU sequences against data in GenBank revealed that the closest related taxa are in the genus Microthyrium . Phylogenetic analyses, based on the combined sequence data from the internal transcribed spacers (ITS) and the large subunit (LSU), revealed that these isolates represent eight new taxa in Microthyriaceae, including two new genera, Antidactylaria gen. nov. and Isthmomyces gen. nov. and six new species, Antidactylaria minifimbriata sp. nov. , Isthmomyces oxysporus sp. nov. , I. dissimilis sp. nov. , I. macrosporus sp. nov. , Triscelophorus anisopterioideus sp. nov. and T. sinensis sp. nov . These new taxa are described, illustrated for their morphologies and compared with similar taxa. In addition, two new combinations are proposed in this family.
... Notes: The genus Dactylaria Sacc., typified with D. purpurella (Sacc.) Sacc., is characterized by unbranched, septate, hyaline or pigmented conidiophores and denticulate, integrated, mostly terminal, sympodially extending conidiogenous cells and cylindrical, fusiform, filiform, ellipsoid, clavate, obclavate, unicellular or septate, hyaline or pale pigmented conidia that are liberated after schizolytic secession [60][61][62]. The rhexolytic conidial secession in Antidactylaria separates it from Dactylaria morphologically as conidiogenous event and an important criterion for generic delimitation, discussed by Paulus et al. [61] and supported by the molecular phylogeny analysis obtained from Antidactylaria minifimbriata. ...
The fungal family Microthyriaceae is represented by relatively few mycelial cultures and DNA sequences. As a result, the taxonomy and classification of this group of organisms remain poorly understood. Here, based on DNA sequences at four gene fragments (nuLSU rDNA, nuSSU rDNA, TEF1 and RPB2) in our analyses of aquatic hyphomycetes from southern China, we identify and report four new genera (Antidactylaria, Isthmomyces, Keqinzhangia, Pseudocoronospora) and thirteen new species (Antidactylaria minifimbriata, Pseudocoronospora hainanensis, Isthmomyces oxysporus, I. dissimilis, I. macrosporus, I. relanceatus, Keqinzhangia aquatica, Triscelophorus anakonajensis, T. anisopterioides, T. guizhouensis, T. mugecuoensis, T. multibrachiatus, T. neoseptatus; new combinations Isthmomyces asymmetrica, I. basitruncata, I. geniculata, I. lanceata, I. minima, I. rotundata) belonging to Microthyriaceae. Our results provided the first molecular evidence of asexual morph of this family and strengthened the phylogenetic placement of the family in class Dothideomycetes. The addition of these new taxa made Microthyriaceae the largest family comprising freshwater asexual genera in Pleosporomycetidae. In addition, we confirmed the monophyly of the genus Triscelophorus, the paraphyly of the genus Isthmolongispora, and revised 6 new combinations in Isthmolongispora. ITS barcoding of 13 species were also provided to help identify aquatic hyphomycetes in the future. Our results suggest that the asexual genera and sexual genera identified so far within this family have completely different ecological niches.
... This genus is characterized by simple or rarely branched, hyaline or brown conidiophores with polyblastic, sympodial, denticulate conidiogenous cells, with unicellular to multiseptate, hyaline or brown conidia with schizolytic secession (Seifert et al. 2011). Worldwide, 87 species are currently accepted, distributed in temperate and tropical areas (Goh and Hyde 1997;Paulus et al. 2003;Mycobank 2017). In Brazil, 20 species have been recorded in the Amazon, Caatinga and Atlantic Forest biomes, with D. candidula (Höhn.) ...
The aim of this study was to investigate the species of conidial fungi associated with leaf litter of Cedrela odorata (Meliaceae), an endangered red cedar species typical of Amazonian terra-firme forests. Conidial fungi were sampled around C. odorata individuals in three forest areas in the municipality of Belém (Pará State, Brazil). A total of 104 species were identified, with 53 new records for the state of Pará, 46 first records for the Brazilian Amazon, including new records for Brazil (Cordana abramovii), for South America (Acarocybiopsis cubitaensis, Xylocladium claviforme) and for the Americas (Dactylaria biguttulata). A review of species of conidial fungi reported on C. odorata is provided, indicating its distribution in Brazil. For each new record in Brazil, South America and the Americas we present a description, illustrations, geographical distribution and taxonomic comments. © 2018, Instituto Nacional de Pesquisas da Amazonia. All rights reserved.
... However, P. guttulata differs from P. uniseptata by its caespitose, hyaline, longer (188-310 μm vs. 126-174 μm) conidiophores and aseptate conidia with 3-5 large guttules. Several species of Dactylaria are described with fusiform, cylindrical to naviculate, unicellular or rarely uniseptate conidia ( de Hoog 1985, Goh & Hyde 1997. Our species can be distinguished from these by the combination of hyaline to subhyaline conidiophores and conidia with large guttules. ...
... Hyphomycetes morphologically similar to our fresh collections, characterized by brown or hyaline conidiophores and septate, hyaline conidia produced holoblastically and sympodially on short rachis or denticulate on sympodial conidiogenous cells, were previously placed in Dactylaria (Saccardo 1880, Goh & Hyde 1997Ho et al. 2001;Cai et al. 2002b). Réblová et al. (2012) described the genus Pleurotheciella which has dactylaria-like asexual characters. ...
The diversity of lignicolous freshwater fungi of the Greater Mekong Subregion are currently being studied. In this paper, 18 fresh collections of Pleurotheciaceae from submerged wood in freshwater are characterized based on morphological characters and analyses of ITS, LSU, SSU and RPB2 sequence data. Six new species of Pleurotheciella (P. aquatica, P. fusiformis, P. guttulata, P. lunata, P. saprophytica, P. submersa), one new Phaeoisaria species (Ph. aquatica) and one new Pleurothecium species (Pl. aquaticum) are introduced based on their distinct morphology and evidence from molecular phylogeny. Pleurotheciella uniseptata, Phaeoisaria clematidis and Pleurothecium pulneyense are also redescribed and phylogenetic relationships assessed herein, these species are the first records for China.
... Notes: This species is similar to Pyricularia caffera, Py. didyma, Py. juncicola, Py. vandalurensis, and Dactylaria madrasensis in having 1-septate conidia (Ellis 1971(Ellis , 1976 Etymology: Named after the country from where it was collected, Iran. ...
... Notes: This species is similar to Pyricularia caffera, Py. didyma, Py. juncicola, Py. vandalurensis, and Dactylaria madrasensis in having 1-septate conidia (Ellis 1971(Ellis , 1976 Etymology: Named after the country from where it was collected, Iran. ...
... Notes: This species is similar to Pyricularia caffera and Pseudopyricularia hyrcaniana in conidial size but its conidia are 2-septate and fusiform. The conidia are similar in size to those of Pyricularia angulata but differ in shape (Ellis 1971(Ellis , 1976Matsushima 1993). Conidial shapes encountered in P. iraniana and characters related to conidial secession differ from patterns observed in Pyricularia because conidia are fusiform and cylindrical, and they show no cut-off. ...
Two new species,Pseudopyricularia hyrcaniana
andP. iraniana, are described, illustrated, and discussed in
this paper. Phylogenetic analyses of the large subunit of the
ribosomal RNA gene cluster and their internal transcribed
spacer regions, and protein encoding gene introns and exons,
including the largest subunit of the RNA polymerase II and
calmodulin, confirmed their placement inPseudopyricularia.
Pseudopyricularia hyrcanianawas isolated as a pathogen
from leaves of Cyperus alternifolius,whileP. iranianawas
fromJuncussp. Conidia ofP. h y r c a n ia n aare obclavate and 1-septate; those ofP. iranianaare fusiform or cylindrical and 2-septate. Analyses of multigene sequences confirm the distinction between P. h y rc a n ia n aandP. iraniana, and reveal their
relationship with their allies in Pyriculariaceae.
... Conidial morphology helps in the delineation of genera: conidial dimension, pigmentation, shape, septation, conidial wall ornamentation, and the presence of appendages. Conidial dimensions are important in the identification of hyphomycetes species, for example, many Dactylaria species are morphologically similar; but the dimensions of the conidia are always key characters in distinguishing species (Goh and Hyde 1997). Conidia of freshwater hyphomycetes are mainly hyaline or brown and may vary at different growth stages. ...
... Among the meiosporic ascomycetes, Calosphaeria sp., Chaetomium homopilatum, C. longicoleum, Chaetosphaeria lignomolis, Linocarpon sp. and Orbilia sp. often occur in terrestrial habitats (Ames, 1961;Kale, 1965;Liu et al., 2006;Hyde, 1997;Fernández & Huhndorf, 2005) and Aniptodera chesapeakensis, Annulatascus velatisporus, Anthostomella aquatica, Jahnula seychellensis, Ophioceras venezuelense, Tamsiniella labiosa, and Torrentispora crassiparietis are reported from freshwater habitats (Shearer, 1989;Hyde & Goh, 1998a,b;Wong SW et al., 1998;Hyde & Wong, 1999;Tsui et al., 2001b;Kohlmeyer & Volkmann-Kohlmeyer, 2002;Fryar & Hyde, 2004). Annulatascus apiculatus was found only once on a submerged twig in Brazil (Barbosa et al., 2008). ...
Résumé – Une étude préliminaire des champignons d'eau douce dans un ruisseau dans la zone semi-aride brésilienne a été effectuée. Des échantillons de débris végétaux submergés ont été collectés tous les trois mois entre 2007 et 2009 dans un petit ruisseau dans la « Serra da Jibóia », état de Bahia. Nous décrivons et illustrons deux nouvelles espèces de hyphomycètes, notamment Dactylaria saccardoana et Quadracaea stauroconidia, et nous rapportons 151 taxons comprenant à la fois des champignons meiosporiques et mitosporiques. Abstract – A preliminary study on freshwater fungi in a stream in the Brazilian semi-arid region was performed. Samples of submerged plant debris were randomly collected every three months from 2007 to 2009 in a small stream surrounded by riparian vegetation in the "Serra da Jibóia" Bahia state. We described and illustrated two new species of hyphomycetes, Dactylaria saccardoana and Quadracaea stauroconidia, and reported one hundred and fifty-one taxa that consist of both meiosporic and mitosporic fungi.
... There are different circumscriptions of Dactylaria and controversial discussions on its taxonomy, and comprehensive reassessments based on phylogenetic data are not yet available. However, Diplorhinotrichum is an established, generally recognized synonym of Dactylaria (Goh & Hyde 1997, Seifert et al. 2011. Almost all species of the latter genus form conidia without any appendages. ...
Mel'nik, V. A., Braun, U. & Alexandrova, A. V. 2013: Dactylaria mucoglobifera sp. nov. – a new species from Vietnam. Schlechtendalia 25: 49–52. The new species Dactylaria mucoglobifera, found in Vietnam on the inner side of cupules belonging to Lithocarpus or Quercus (Fagaceae), is described, illustrated and discussed. This species is unique by its conidia with mucous, globose apical appendages. Zusammenfassung: Mel'nik, V. A., Braun, U. & Alexandrova, A. V. 2013: Dactylaria mucoglobifera sp. nov – eine neue Art aus Vietnam. Schlechtendalia 25: 49–52. The neue Art Dactylaria mucoglobifera, gefunden in Vietnam auf Cupulae von Lithocarpus oder Quercus (Fagaceae), wird beschrieben, abgebildet und diskutiert. Diese Art ist einmalig auf Grund ihrer Konidien mit schleimigen, kugeligen Anhängseln an der Spitze.
... (Saccardo 1880). Many species were added over the 20th century, and the genus is now a large, heterogeneous collection of species with varying ecology and a broad range of conidiophore types, pigmentation, patterns of sympodial extension of the conidiogenous cell (terminal, nodose or extended), and conidial shape, pigmentation and septation (e.g. de Hoog and von Arx 1973, Schenck et al. 1977, de Hoog et al. 1983, de Hoog 1985, Goh and Hyde 1997). The distinction between Dactylaria and morphologically similar genera, such as Mirandina G. Arnaud ex Matsush., Ochroconis de Hoog & Arx and Scolecobasidium E.V. Abbott, generally has been problematic. ...
... Dactylaria triseptata (Matsush.) R. F. Castañeda & W.B. Kendr., also has conidia similar to Pla. centenaria, but has conspicuously macronematous conidiophores (Goh and Hyde 1997). None of the other species with three-septate conidia (Goh and Hyde 1997, Paulus et al. 2003) are likely to be confused with Pla. ...
... R. F. Castañeda & W.B. Kendr., also has conidia similar to Pla. centenaria, but has conspicuously macronematous conidiophores (Goh and Hyde 1997). None of the other species with three-septate conidia (Goh and Hyde 1997, Paulus et al. 2003) are likely to be confused with Pla. centenaria. ...
Two strains of an unidentified perithecial ascomycete with a dactylaria-like anamorph and another morphologically similar strain of a dactylaria-like fungus were collected on decaying wood submerged in freshwater. To study their phylogenetic relationships we (i) combined sequence data from the nuclear small and large subunits ribosomal DNA (nc18S and nc28S) and the second largest subunit of RNA polymerase II (RPB2) for a multigene phylogenetic analysis and (ii) used sequences of the internal transcribed spacer region (ITS) of the rRNA operon for a species-level analysis. The new genus Pleurotheciella is described for two new species, Pla. rivularia and Pla. centenaria, with nonstromatic perithecia, unitunicate asci, persistent paraphyses and hyaline, septate ascospores and dactylaria-like anamorphs characterized by holoblastic, denticulate conidiogenesis, subhyaline conidiophores and hyaline, septate conidia. Based on morphological and molecular data, Pleurotheciella is closely related to the genera Pleurothecium and Sterigmatobotrys. A key to the three genera and the known species is provided. In the inferred three-gene phylogeny, these genera grouped as a sister clade to theSavoryellales within a robust clade of uncertain higher rank affiliation. Phylogenetic study of the 12 strains that represent Pleurothecium recurvatum revealed four that grouped apart from the core of the species. Two of these strains, which formed a monophyletic well supported clade inboth phylogenies and share similar morphological characteristics, are described as a new species, Pleurothecium semifecundum.
